Which of the following elements has the electron configuration [Ne]3s²3p⁵? (2023

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Question: Which of the following elements has the electron configuration [Ne]3s²3p⁵? (2023)

Options:

Correct Answer: Chlorine

Exam Year: 2023

Solution:

The electron configuration [Ne]3s²3p⁵ corresponds to Chlorine, which has 17 electrons.

Which of the following elements has the electron configuration [Ne]3s²3p⁵? (2023)

Which of the following elements has the electron configuration [Ne]3s²3p⁵? (2023)

Step 1: Understand that the electron configuration shows how electrons are arranged in an atom.
Step 2: Recognize that [Ne] represents the electron configuration of Neon, which has 10 electrons.
Step 3: The notation 3s² means there are 2 electrons in the 3s subshell.
Step 4: The notation 3p⁵ means there are 5 electrons in the 3p subshell.
Step 5: Add the electrons: 10 (from Neon) + 2 (from 3s²) + 5 (from 3p⁵) = 17 electrons.
Step 6: Identify the element with 17 electrons, which is Chlorine (Cl).

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